Question

Two cardboard boxes full of books are in contact with each other on a friction less table. Box H has twice the mass of box G. If you push on a box G with a horizontal force F, then box H will experience a net force of what value?
Please explain

Answer 1

The force exerted by box G on box H =  F horizontally.

Weight acting on box H downwards = W = mg
The force exerted by the box H on table = W  (weight = mg) vertically down
The reaction force exerted by table on box H = W vertically up

The net force acting on box H = F horizontally.

There is no friction force.